Atom-light interactions in photonic crystals
Atom-light interactions in photonic crystals
复制标题
DOI：
10.1038/ncomms4808
复制
发表时间：
2014-05-01
影响因子：
16.6
通讯作者：
Kimble, H. J.
中科院分区：
文献类型：
--
作者：
Goban, A.;Hung, C. -L.;Kimble, H. J.
纳米光子学和原子物理学的整合一直是一个长期追求的目标，它将为光学物理学开辟新的前沿，包括新的量子输运和光子介导的原子相互作用的多体现象。实现这一目标需要克服纳米制造和原子操作方面的各种挑战。在这里，我们报告了一种新型集成光电路的发展与光子晶体能够定位和界面原子与引导光子。光子晶体波导的光学带与选定的原子跃迁对齐。从平均原子序数(N)在bar = 1:1 +/- 0: 4时测量的反射光谱中，我们推断原子是通过光偶极子力在波导内定域的。单原子辐射衰减到波导中的比例为Gamma(1D)/Gamma‘，近似或等于（0.32 +/- 0.08），其中Gamma（1D）是进入导模的发射速率，Gamma’是进入所有其他通道的衰减速率。Gamma(1D)/Gamma'在当前所有原子-光子界面中都是前所未有的。
The integration of nanophotonics and atomic physics has been a long-sought goal that would open new frontiers for optical physics, including novel quantum transport and many-body phenomena with photon-mediated atomic interactions. Reaching this goal requires surmounting diverse challenges in nanofabrication and atomic manipulation. Here we report the development of a novel integrated optical circuit with a photonic crystal capable of both localizing and interfacing atoms with guided photons. Optical bands of a photonic crystal waveguide are aligned with selected atomic transitions. From reflection spectra measured with average atom number (N) over bar = 1: 1 +/- 0: 4, we infer that atoms are localized within the waveguide by optical dipole forces. The fraction of single-atom radiative decay into the waveguide is Gamma(1D)/Gamma' similar or equal to (0.32 +/- 0.08), where Gamma(1D) is the rate of emission into the guided mode and Gamma' is the decay rate into all other channels. Gamma(1D)/Gamma' is unprecedented in all current atom-photon interfaces.